Putting together a bezel-less handset has been the holy grail of modern smartphone design. The biggest technological barrier is one concerning how to eliminate the chin where the display controller lies. (Picture: Weibo/Chang Cheng)

Putting together a bezel-less handset has been the holy grail of modern smartphone design. The biggest technological barrier is one concerning how to eliminate the chin where the display controller lies. (Picture: Weibo/Chang Cheng)